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<h3 class="heading"><span class="type">Paragraph</span></h3>
<p>We define the Wronskian for <span class="process-math">\(y_1, y_2, \cdots, y_n\)</span> as</p>
<div class="displaymath process-math" data-contains-math-knowls="">
\begin{equation*}
W( y_1, \cdots, y_n)=\left|
\begin{array}{cccc}
y_1(x) &amp; y_2(x) &amp; \cdots &amp; y_n(x)\\
y_1^{\prime}(x) &amp; y_2^{\prime}(x) &amp; \cdots &amp; y_n^{\prime}(x)\\
&amp; &amp; \cdots &amp; \\
y_1^{(n-1)}(x) &amp; y_2^{(n-1)} (x) &amp; \cdots &amp; y_n^{(n-1)}(x)
\end{array}
\right|.
\end{equation*}
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<p class="continuation">Then</p>
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\begin{equation*}
W_0=W|_{x=x_0}.
\end{equation*}
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<span class="incontext"><a href="sec4_1.html#p-150" class="internal">in-context</a></span>
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